[Checkins] [zopefoundation/Zope] 94658d: - Make Zope write a PID file again under WSGI.

[Jens Vagelpohl]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/Zope
  Commit: 94658dbf6c9efda5e54c77db9896b317cfd6169e
      https://github.com/zopefoundation/Zope/commit/94658dbf6c9efda5e54c77db9896b317cfd6169e
  Author: Jens Vagelpohl <jens at mineralware.com>
  Date:   2019-05-07 (Tue, 07 May 2019)

  Changed paths:
    M CHANGES.rst
    M setup.cfg
    M src/Zope2/Startup/datatypes.py
    M src/Zope2/Startup/serve.py
    M src/Zope2/Startup/tests/test_schema.py
    A src/Zope2/Startup/tests/test_serve.py
    M src/Zope2/Startup/wsgischema.xml
    M src/Zope2/utilities/skel/etc/wsgi.conf.in

  Log Message:
  -----------
  - Make Zope write a PID file again under WSGI.

This makes interaction with sysadmin tools easier.
The PID file path can be set in the Zope configuration with ``pid-filename``,
just like in ``ZServer``-based configurations.